num_str=raw_input("Enter a number:")
num_num = int(num_str)
fac_list=range(1,num_num+1)

print "BEFORE:",fac_list

i=0

while i < len(fac_list):
    if (num_num%fac_list[i]%num_num==0):
        del fac_list[i]
    i=i+1

print "AFTER",fac_list